scholarly journals Energy Management Integrated Circuit for Multi-Source Energy Harvesters in WBAN Applications

2018 ◽  
Vol 8 (8) ◽  
pp. 1262 ◽  
Author(s):  
Sung-Eun Kim ◽  
Taewook Kang ◽  
Kwang-Il Oh ◽  
Mi Park ◽  
Hyung-Il Park ◽  
...  
Keyword(s):  
Energy Management ◽  
Integrated Circuit ◽  
Electronic Device ◽  
Wireless Body Area Network ◽  
Oxide Semiconductor ◽  
Operating Efficiency ◽  
Area Network ◽  
Energy Harvesters ◽  
Wearable Electronic Device ◽  
Wide Range

This paper presents an energy management integrated circuit for multiple energy harvesters in wireless body area network applications. The electrical power acquired from a single energy harvester around a human body is limited to micro watts, which is insufficient to drive a wearable electronic device. To increase this small amount, the energy from a number of harvesters has to be combined. By combining the energy from multiple distributed harvesters, each one producing negligible energy, significant energy for wearable devices can be obtained. In designing an energy management circuit for a wearable device, there are two issues to be resolved. The first is related to the power consumption of the circuit, and the second issue is related to the methods needed to manage the wide range of power that occurs as the energy input changes during harvesting. In this paper, an energy management circuit that resolves the two issues above is described. The circuit was integrated using 0.13 µm Taiwan Semiconductor Manufacturing Company complementary metal-oxide-semiconductor technology. The energy management circuit is designed to combine up to three sources of harvested energy with more than 90% operating efficiency over the entire power range of the energy harvested.

scholarly journals Electro-textile wearable antennas in wireless body area networks: materials, antenna design, manufacturing techniques, and human body consideration—a review

2020 ◽  
pp. 004051752093223 ◽  
Author(s):  
Bahaa Almohammed ◽  
Alyani Ismail ◽  
Aduwati Sali
Keyword(s):  
Human Body ◽  
High Performance ◽  
Material Selection ◽  
Wireless Body Area Network ◽  
Area Network ◽  
Body Area ◽  
Wearable Antennas ◽  
Wide Range ◽  
Manufacturing Techniques ◽  
The Internet Of Things

The latest progress in the emerging wireless technology has resulted in the development of wearable antennas made of various fabrics. This unique antenna is an integral part of the wireless body area network (WBAN). A wide range of applications are made by the wearable antennas in the fields of the Internet of Things, sport, defense, public safety, telemedicine, navigation, and tracking. The focus point of the current review is the recent progress of electro-textiles research with special attention on the materials properties, criteria, and manufacturing techniques. Existing as well as upcoming materials specifically and potentially used for electro-textile fabrication are discussed. Various manufacturing techniques are discussed to match the importance of material selection. The current work highlights the performance when the antennas tagging are applied in WBAN objects and illustrates how the human body affects the performance of the wearable antenna and vice versa. The findings of this review by introducing the best materials, techniques, and designs could be used in future to provide high-performance materials for body-centric applications.

scholarly journals Compact textile UWB antenna with hexagonal for biomedical communication

2021 ◽  
Author(s):  
S. Parameswari ◽  
C. Chitra
Keyword(s):  
Ground Plane ◽  
Wireless Body Area Network ◽  
Wide Band ◽  
Wireless Sensor ◽  
Area Network ◽  
Uwb Antenna ◽  
Body Area ◽  
Suitable Candidate ◽  
Low Profile ◽  
Wide Range

AbstractThis paper introduces a small-sized, low profile, planar and flexible ultra-wide band (UWB) antenna using Jeans, a textile material as the substrate. A novel shape of hexagonal slot in rectangular step shape patch with partial ground plane is developed with bandwidth of 12 GHz is proposed. It is the primary approach in using natural textile as the substrate for UWB antenna which operated in a wide range of bandwidth. The UWB antenna is designed for short range applications including wireless body area network (WBAN), which is the current revolution with growing demands in wireless sensor networks. The antenna operates from 2.8 to 10.9 GHz, which is a suitable candidate for WBAN operation.

scholarly journals Blockchain Integrated Healthcare Wireless Body Area Network for Security Enhancement

2021 ◽  
pp. 23-27
Author(s):  
Vipin Panwar ◽  
Dr. S. K. Jain
Keyword(s):  
Wireless Body Area Network ◽  
Security And Privacy ◽  
Area Network ◽  
Body Area ◽  
Integrated Healthcare ◽  
Medical Practitioners ◽  
Security Enhancement ◽  
Wide Range ◽  
Vital Component ◽  
Block Chain

A greater standard of network confidentiality and protection is generally accepted as a vital component of securing this data when employed by medical practitioners as well as during storage to guarantee that patient data are maintained safe from intruders. This paper develops block chain cryptography and bio-informatics verification architecture for WBANs implementations. As a result, there is a deep desire to solve security and privacy challenges with WBANs. WBANs confront a wide range of problems. Because of its versatility in a wide range of applications, WBAN is a favoured battleground for cybercriminals. This work also provides a blockchain integrity check and bio-informatics authentication framework for WBANs implementations. Hence there is an important interest to address security and privacy problems in WBANs.

Effect of mobility conditions on the throughput of the Wireless Body Area Network

2020 ◽  
Vol 10 ◽  
Author(s):  
Shilpa Shinde ◽  
Santosh Sonavane
Keyword(s):  
Mathematical Model ◽  
Wireless Body Area Network ◽  
Data Rate ◽  
Hand Movements ◽  
Body Area Network ◽  
Area Network ◽  
Mobility Patterns ◽  
Body Area ◽  
Insight Into ◽  
Leg Movements

Background and objective: In the Wireless Body Area Network (WBAN) sensors are placed on the human body; which has various mobility patterns like seating, walking, standing and running. This mobility typically assisted with hand and leg movements on which most of the sensors are mounted. Previous studies were largely focused on simulations of WBAN mobility without focusing much on hand and leg movements. Thus for realistic studies on performance of the WBAN, it is important to consider hand and leg movements. Thus, an objective of this paper is to investigate an effect of the mobility patterns with hand movements on the throughput of the WBAN. Method: The IEEE 802.15.6 requirements are considered for WBAN design. The WBAN with star topology is used to connect three sensors and a hub. Three types of mobility viz. standing, walking and running with backward and forward hand movements is designed for simulation purpose. The throughput analysis is carried out with the three sets of simulations with standing, walking and running conditions with the speed of 0 m/s, 0.5 m/s and 3 m/s respectively. The data rate was increased from 250 Kb to 10000 Kb with AODV protocol. It is intended to investigate the effect of the hand movements and the mobility conditions on the throughput. Simulation results are analyzed with the aid of descriptive statistics. A comparative analysis between the simulated model and a mathematical model is also introduced to get more insight into the data. Results: Simulation studies showed that as the data rate is increased, throughput is also increased for all mobility conditions however, this increasing trend was discontinuous. In the standing (static) position, the throughput is found to be higher than mobility (dynamic) condition. It is found that, the throughput is better in the running condition than the walking condition. Average values of the throughput in case of the standing condition were more than that of the dynamic conditions. To validate these results, a mathematical model is created. In the mathematical model, a same trend is observed. Conclusion: Overall, it is concluded that the throughput is decreased due to mobility of the WBAN. It is understood that mathematical models have given more insight into the simulation data and confirmed the negative effect of the mobility conditions on throughput. In the future, it is proposed to investigate effect of interference on the designed network and compare the results.

Simple circuit for pacing hearts of experimental animals

1992 ◽  
Vol 262 (6) ◽  
pp. H1939-H1940 ◽  
Author(s):  
G. L. Freeman ◽  
J. T. Colston
Keyword(s):  
Integrated Circuit ◽  
Simple Circuit ◽  
Cardiovascular Research ◽  
Experimental Animals ◽  
Wide Range ◽  
Astable Multivibrator

In this paper we describe a simple pacing circuit which can be used to drive the heart over a wide range of rates. The circuit is an astable multivibrator, based on an LM555 integrated circuit. It is powered by a 9-V battery and is small enough for use in rabbits. The circuit is easily constructed and inexpensive, making it attractive for numerous applications in cardiovascular research.

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